Car-brake



(No Model.)

J. T. ROBINSON.

' GAR BRAKE. No. 458,497. Patented Aug. 25, 1891.

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UNITED STATES ATENT' Orricn.

JAMES T. ROBINSON, OF ALTOONA, PENNSYLVANIA.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent N 0. 458,497, dated August25, 1891. Application filed March 9, 1891. Serial No. 334,321. (Nomodel.)

.To aZZ whom it may concern:

Be it known that I, JAMES T. ROBINSON, a citizen of the United States,residing at Altoona, in the county of Blair and State of Pennsylvania,have invented certain new and useful Improvements in Oar-Brakes; and Ido hereby declare the following to be afull, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to car-brakes, and has for its object to produce abrake that will look all the wheels of the car by applying power ateither end; also, to so arrange the levers constituting the brake thatthey will when in position lie immediately under the car-body.

In the drawings which accompany and form part of this specification,Figure 1 is a plan view of the brake, showing it in position upon acar-truck. Fig. 2 is a modification. Fig. 3 is a detail viewof thelevers shown in Fig. 1.

A represents a car-truck of any approved pattern, and B the wheelsthereof. Secured to the truck A is a brace-rod 0, running diagonallyacross from one side of the truck to the other.

E is a lever, which is pivoted at e to the brace-rod 0.

g g are rods which are pivotally secured to the lever E, and G G arealso rods, which are connected to the rods g g by means of thescrew-link G. The rods G, by means of the screw-link, form acontinuation of the rods g. Said rods are pivotally connected to leverH, which in turn is pivotally secured to a long bolt or rod 1, connectedto the end plank of the ear-truck. This bolt or rod I forms the fulcrumof the lever I-I. Pivoted at h to the lever H is a lever K, which isrigidly secured at its other end to the brake-beam L, which carries thebrake-shoes Z Z.

M M are pull-rods, which are pivoted, re-

A spectively, to the ends of the lever E. These rods M are suitablysecured or connected to a suitable brake handle or lever or other sourceof power. The leverE has a series of pivot-holes e, in which the leversg g may be pivoted, the object of which is that by pivotthe series oflevers may be made longer or shorter, as the case may require.

X is a brace, which is secured to the end plank of the truck at Y andtothe side of the truck at Z, thus bracing the end plank against thestrain incident to applying the brakes.

N is a spiral spring secured to the end plank of the truck and to thelever H.

The operation is as follows: Power applied on the pull-rod M from eitherend of the car is transmitted to the lever E, thence to the rods 9 and Gto the lever H, which, acting on its fulcrum, transmits the power to thelever K and thus to the brake-beam L, thereby applying the brakes. lVhenthe power is released, the levers are accelerated in their backwardmovement by spring N, thus quickly releasing the brakes. The purpose ofthe screw-link, is to take up any slack in the levers which may occurfrom the stretching or any other cause.

In Fig. 2 is shown a slight modification of my brake, in which 0 is thecentral lever, pivoted at o to a suitable brace (not shown) cor--responding to brace O in Fig. 1.

P P are the brake-beams, of suitable construction, and p p are braces,each secured rigidly to the brake-beams. These braces extend a suitabledistance beyond the brake-beams, and pivoted to them at r is a lever B.

S is a long lever pivoted at one end to the lever B and at its other tothe central lever O. The short arm of each lever B is connected by along connecting-lever T.

V are the pull rods or chains.

The operation is as follows: Power being applied to rods V istransmitted to lever O, which partly turns, thus acting on levers S andR, the lever T holding the short arms of levers R together, thusthrowing the power through the braces 19 p on the brake-beam andapplying the brakes.

It is evident that many slight changes and alterations may be made inthe relative construction and arrangement of the parts without departingfrom the spirit of my invention,

and hence I would have it understood that I do not confine myselfstrictly to the parts herein described.

What I claim, and desire to secure by Letters Patent, is'

1. In a car-brake, the combination, with the lever E, of thediagonally-disposed rods, and lever H With its fulcrum I, and lever K,connected to the brake-beam, substantially as described.

, 2. The combination, with the rods M and 1e ver E, of thediagonally-disposed rods, the le vers H and K,- and the spring N, allarranged and operating substantially as described;

In testimony whereof I have aflixed my signature in presence of twoWitnesses.

JAMES T.ROBINSON. Witnesses:

J. WINFIELD PEUGH, EMMETT CONRAD.

